gps tracking Lance and Jan

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Did each competitor have gps on their bikes ? Who is the mfg. of the gps unit ? Apparently , they
were track by gps.

The GPS equipment was on motorbikes that were trailing them.

Drew Cutter said:

Did each competitor have gps on their bikes ? Who is the mfg. of the gps unit ? Apparently , they
were track by gps.

You crazy ;-) They would have needed a receiver and a transmitter and I don't think they wanted
to carry that kind of stuff. The GPS receivers/transmitters were located on motorbikes just
behind them.

But , then it would not be accurate on speed ,etc . You saw Jan waving his team car off for being
too close. Timex has a gps similar to a heart monitor.

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Did each competitor have gps on their bikes ? Who is the mfg. of the gps unit ? Apparently , they
were track by gps.

No.

Are you a Fred or just really dumb?

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

But , then it would not be accurate on speed ,etc . You saw Jan waving his team car off for being
too close. Timex has a gps similar to a heart monitor.

Check out the header on Keith's message, and think again. Your Timex thing is a receiver. Where's
the transmitter?

I know that timex is not a receiver. I was pointing out that a gps receiver doesn't have to be big
an heavy to be a receiver. Any body who calls a person a Fred must be an idiot liberal Canadian .
Whoops a fred statement. To suggest that the motorcycle following the racer is even dumber . You
want to know the split time , the gps has to be on the bike or on the racer (down to the seconds).

This is what I'm talking about. This surely small enough and light enough to be place somewhere on
Lance and Jan bike or helmet. laipac.comgps gpscube eng.htmOpen ↗

Drew Cutter said:

But , then it would not be accurate on speed ,etc .

They weren't tracking speed, they were tracking time. It's easy enought to instruct the motorbikes
to ride at the same distance behind the riders to get a reading that's accurat enough.

Quoted message said:

You saw Jan waving his team car off for being too close. Timex has a gps similar to a heart
monitor.

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

This is what I'm talking about. This surely small enough and light enough to be place somewhere on
Lance and Jan bike or helmet. laipac.comgps gpscube eng.htmOpen ↗

If that's what you're talking about then you don't know what you're talking about.

You wouldn't need gps to know this . A simple stop watch or radar gun would do the trick for speed .
- use of motorcycle. They were track by gps according to the official TDF web page . I guessing that
the use of gps was due to the closeness of lance and Jan. Almost a dead heat if it wasn't for the
crash. Also , Lance predicted a record breaking TT. A little more drama added with the use a gps.

I wouldn't not have posted this question if it was not on the TDF web page.

Taken directly from the official web page.

"16 H 54 - GPS Reading Has Ullrich Behind By 1'19" Overall... The GPS system suggests that Ullrich
has lost 14" to Armstrong in today's stage. That means Armstrong is likely to start the final stage
with a lead of about 1'19". "

Quoted message said:

16 H 30 - Less Than 25km To Go Lance Armstrong has just ridden under the 25km to go banner. He was
equal with Ullrich at the 15km mark, but the GPS monitoring system suggests that he is about 5"
ahead of Ullrich.

They were apparently use gps down to inches.

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

16 H 30 - Less Than 25km To Go Lance Armstrong has just ridden under the 25km to go banner.
He was

equal with Ullrich

Quoted message said:

Quoted message said:

at the 15km mark, but the GPS monitoring system suggests that he is about

5" ahead of

Quoted message said:

Quoted message said:

Ullrich.

Quoted message said:

They were apparently use gps down to inches.

It's seconds, not inches.

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

16 H 30 - Less Than 25km To Go Lance Armstrong has just ridden under the 25km to go banner.
He was

equal with Ullrich

Quoted message said:

Quoted message said:

at the 15km mark, but the GPS monitoring system suggests that he is about

5" ahead of

Quoted message said:

Quoted message said:

Ullrich.

They were apparently use gps down to inches.

Civilian GPS is not that accurate. It's something like +-20 feet.

Military GPS is different, but they won't share that, for obvious reasons.

Kurgan Gringioni said:

Civilian GPS is not that accurate. It's something like +-20 feet. Military GPS is different, but
they won't share that, for obvious reasons.

You can get millimetric accuracy even with Selective Availability switched on by reading the carrier
wave pulse rather than decoding the positional information.

Thanks Stewart . The man . I wonder how much gps we will see in future TDF races.

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Thanks Stewart . The man . I wonder how much gps we will see in future TDF races.

Dude,

Regardless GPS accuracy or methodology, the 5" number you referred to is *seconds*, not inches.

Why would they refer to km and then switch to inches, especially on a French site?

Quoted message said:

Taken directly from the official web page.

"16 H 54 - GPS Reading Has Ullrich Behind By 1'19" Overall... The GPS system suggests that Ullrich
has lost 14" to Armstrong in today's stage. That means Armstrong is likely to start the final stage
with a lead of about 1'19". "

and ? How many times do we need to tell you that they the GPS receivers and radio transmitters were
installed on motorbikes closely traliing the racers?

Kurgan Gringioni said:

"Drew Cutter" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

16 H 30 - Less Than 25km To Go Lance Armstrong has just ridden under the 25km to go
banner. He was

equal with Ullrich

Quoted message said:

Quoted message said:

at the 15km mark, but the GPS monitoring system suggests that he is about

5" ahead of

Quoted message said:

Quoted message said:

Ullrich.

They were apparently use gps down to inches.

Civilian GPS is not that accurate. It's something like +-20 feet.

Military GPS is different, but they won't share that, for obvious reasons.

I believe the Pentagon has removed the scrambling in recent years. Before the Iraq war, I saw a
report about them deciding / trying to figure out how to re-scramble it.

--
--
Lynn Wallace xmission.com~lawallOpen ↗ "I'm not proud. We really haven't done everything we
could to protect our customers. Our products just aren't engineered for security." --Microsoft VP in
charge of Windows OS Development, Brian Valentine.